In a blog post on Medium, Moskovitz said the election is a “referendum on who we want to be” and — apparently referring to Trump — said: “Will we be driven by fear, towards tribalism, emphasizing the things that divide us?”

Moskovitz claimed that “the Republican Party, and Donald Trump in particular, is running on a zero-sum vision, stressing a false contest between their constituency and the rest of the world.”

Democratic candidate Hillary Clinton, he claimed, “is running on a vision of optimism, pragmatism, inclusiveness and mutual benefit,” thus earning the endorsement of him and his wife, Cara Tuna.

‘If Donald Trump wins, the country will fall backward and become more isolated from the global community.’

- Dustin Moskovitz

“As a nation, we need to figure out how to bring everyone with us, and we believe the Democratic platform currently is more aligned with ensuring that happens,” he wrote.

“In comparison, Donald Trump’s promises to this group are quite possibly a deliberate con, an attempt to rally energy and support without the ability or intention to deliver. His proposals are so implausible that the nation is forced to worry that his interest in the presidency might not even extend beyond winning a contest and promoting his personal brand.”

The tech mogul warned: “If Donald Trump wins, the country will fall backward, and become more isolated from the global community.”

Moskovitz said the cash — from him and his wife —will go to support Democrat-aligned groups.